Publications
A complete list of publications and citations can be found on my Google Scholar page.
Journal Articles (refereed)
- Kumar Saurabh, Boshun Gao, Milinda Fernando, Songzhe Xu, Makrand A Khanwale, Biswajit Khara, Ming-Chen Hsu, Adarsh Krishnamurthy, Hari Sundar, Baskar Ganapathysubramanian, Industrial scale Large Eddy Simulations with adaptive octree meshes using immersogeometric analysis Computers & Mathematics with Applications, Vol 97, Sep 2021.
- Max Carlson, Xiaoning Zheng, Hari Sundar, George Em Karniadakis, Robert M Kirby, An open-source parallel code for computing the spectral fractional Laplacian on 3D complex geometry domains Computer Physics Communications, Vol 261, Apr 2021.
- Songzhe Xu, Boshun Gao, Alec Lofquist, Milinda Fernando, Ming-Chen Hsu, Hari Sundar, Baskar Ganapathysubramanian, An octree-based immersogeometric approach for modeling inertial migration of particles in channels Computers & Fluids, Vol 214, Jan 2021.
- Makrand A Khanwale, Alec D Lofquist, Hari Sundar, James A Rossmanith, Baskar Ganapathysubramanian, Simulating two-phase flows with thermodynamically consistent energy stable Cahn-Hilliard Navier-Stokes equations on parallel adaptive octree based meshes Journal of Computational Physics Vol 419 Oct 2020.
- Khalid Ahmad, Hari Sundar, Mary Hall Data-driven mixed precision sparse matrix vector multiplication for GPUs. ACM Transactions on Architecture and Code Optimization. Vol. 16. No. 4, Article 51, 2019.
- Milinda Fernando, Davit Neilsen, Hyun Lim, Eric Hirschmann, Hari Sundar, Massively Parallel Simulations of Binary Black Hole Intermediate-Mass-Ratio Inspirals, SIAM Journal on Scientific Computing, 41(2), C97–C138. 2019
- Janan Lake, Chao, Q., Hannah Eyre, Emerson Ford, Kevin Parker, Kincaid Savoie, Hari Sundar, Mary Hall. Student Cluster Competition 2017, Team University of Utah: Reproducing Vectorization of the Tersoff Multi-Body Potential on the Intel Broadwell and Intel Skylake Platforms. Parallel computing. 79, Nov. 2018.
- Mark Baranowski, Brandon Caywood, Hannah Eyre, Janaan Lake, Kevin Parker, Kincaid Savoie, Hari Sundar and Mary Hall, Reproducing ParConnect for SC16. Parallel computing. 70, 2017.
- Amir Gholami, Dhairya Malhotra, Hari Sundar, George Biros, FFT, FMM, or Multigrid? A comparative study of state-of-the-art Poisson solvers in the unit cube, SIAM Journal on Scientific Computing 38(3), C280–C306. 2016
- Hari Sundar, Georg Stadler, George Biros, Comparison of multigrid algorithms for high‐order continuous finite element discretizations, Numerical Linear Algebra with Applications 22 (4), 664-680. 2015
- David Rivest-Henault, Hari Sundar, Mohamed Cheriet, Nonrigid 2D/3D registration of coronary artery models with live fluoroscopy for guidance of cardiac interventions, IEEE Transactions on Medical Imaging 31 (8), 1557-1572. 2012
- Parmeshwar Khurd, Leo Grady, Rafiou Oketokoun, Hari Sundar, Tejas Gajera, S Gibbs-Strauss, Global error minimization in image mosaicing using graph connectivity and its applications in microscopy, Journal of pathology informatics 2 (2), 8. 2012
- Hari Sundar, Harold Litt, Dinggang Shen, Estimating myocardial motion by 4D image warping, Pattern Recognition 42 (11), 2514-2526. 2009
- Hari Sundar, RS Sampath, George Biros, Bottom-up construction and 2: 1 balance refinement of linear octrees in parallel, SIAM Journal on Scientific Computing 30 (5), 2675-2708. 2008
Over 100 Citations
- Charles R Bridges, Kapil Gopal, David E Holt, Charles Yarnall, Steven Cole, Rochelle B Anderson, Xiaoqing Yin, Anthony Nelson, Benjamin W Kozyak, Zhonglin Wang, James Lesniewski, Leonard T Su, Danielle M Thesier, Hari Sundar, Hansell H Stedman, Efficient myocyte gene delivery with complete cardiac surgical isolation in situ, The Journal of thoracic and cardiovascular surgery 130 (5), 1364.e1-e8. 2005
Conference Publications (refereed)
- Kumar Saurabh, Masado Ishii, Milinda Fernando, Boshun Gao, Kendrick Tan, Ming-Chen Hsu, Adarsh Krishnamurthy, Hari Sundar, Baskar Ganapathysubramanian, Scalable adaptive PDE solvers in arbitrary domains, Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC21).
- Majid Rasouli, Robert M Kirby, Hari Sundar, A Compressed, Divide and Conquer Algorithm for Scalable Distributed Matrix-Matrix Multiplication, The International Conference on High Performance Computing in Asia-Pacific Region, 2021.
- Max Carlson, Robert M Kirby, Hari Sundar, A scalable framework for solving fractional diffusion equations, Proceedings of the 34rd ACM on International Conference on Supercomputing (ICS20), 2020.
- Masado Ishii, Milinda Fernando, Kumar Saurabh, Biswajit Khara, Baskar Ganapathysubramanian, Hari Sundar, Solving PDEs in space-time: 4D tree-based adaptivity, mesh-free and matrix-free approaches Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC19)
- Milinda Fernando, David Neilsen, Eric Hirschmann, Hari Sundar, A scalable framework for Adaptive Computational General
Relativity on Heterogeneous Clusters, Proceedings of the 33rd ACM on International Conference on Supercomputing (ICS19), 2019. Acceptance Rate: 21%
- Majid Rasouli, Scalable Lazy-update Multigrid Preconditioners, 2019 IEEE High Performance Extreme Computing Conference (HPEC '19)
- Nishith Tirpankar, Hari Sundar, Towards Triangle Counting on GPU using Stable Radix binning, 2018 IEEE High Performance Extreme Computing Conference (HPEC ‘18)
- Max Carlson, Hari Sundar, Utilizing GPU Parallelism to Improve Fast Spherical Harmonic Transforms, 2018 IEEE High Performance Extreme Computing Conference (HPEC ‘18)
- Majid Rasouli, Vidhi Zala, Robert Kirby, Hari Sundar, Improving Performance and Scalability of Algebraic Multigrid through a Specialized MATVEC, 2018 IEEE High Performance Extreme Computing Conference (HPEC ‘18)
- Isuru Fernando, Sanath Jayasena, Milinda Fernando, Hari Sundar, A Scalable Hierarchical Semi-Separable Library for Heterogeneous Clusters, Parallel Processing (ICPP), 46th International Conference on, 513-522, 2017. Acceptance Rate: 28%.
- Parmeshwar Khurd, Hari Sundar, Parallel Algorithm for the Computation of Cycles in Relative Neighborhood Graphs, Parallel Processing (ICPP), 46th International Conference on, 191-200, 2017. Acceptance Rate: 28%.
- Hari Sundar, Efficient Parallel Streaming Algorithms for large-scale Inverse Problems, 2017 IEEE High Performance Extreme Computing Conference (HPEC ‘17), 2017.
- Isuru Fernando, Sanath Jayasena, Milinda Fernando, Hari Sundar, A Scalable Hierarchical Semi-Separable Library for Heterogeneous Clusters, Parallel Processing (ICPP), 46th International Conference on, 513-522, 2017. Acceptance Rate: 28%.
- Parmeshwar Khurd, Hari Sundar, Parallel Algorithm for the Computation of Cycles in Relative Neighborhood Graphs, Parallel Processing (ICPP), 46th International Conference on, 191-200, 2017. Acceptance Rate: 28%.
- Milinda Fernando, Dmitry Duplyakin, Hari Sundar, Machine and Application Aware Partitioning for Adaptive Mesh Refinement Applications, Proceedings of the 26th International Symposium on High-Performance Parallel and Distributed Computing (HPDC'17), 2017. Acceptance Rate: 19%
- Hari Sundar, Omar Ghattas, A Nested Partitioning Algorithm for Adaptive Meshes on Heterogeneous Clusters, Proceedings of the 29th ACM on International Conference on Supercomputing (ICS15), 2015. Acceptance Rate: 25%
- Jithin Jose, Sreeram Potluri, Hari Subramoni, Xiaoyi Lu, Khaled Hamidouche, Karl Schulz, Hari Sundar, Dhabaleswar K Panda, Designing scalable out-of-core sorting with hybrid MPI+ PGAS programming models, Proceedings of the 8th International Conference on Partitioned Global Address Space Programming Models, 2014.
- Hari Sundar, Dhairya Malhotra, Karl W Schulz, Algorithms for high-throughput disk-to-disk sorting, Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC13), 2013. Acceptance Rate: 20%
- Hari Sundar, Dhairya Malhotra, George Biros, HykSort: a new variant of hypercube quicksort on distributed memory architectures, Proceedings of the 27th international ACM conference on international conference on supercomputing (ICS13), 2013. Acceptance Rate: 21%
- Hari Sundar, George Biros, Carsten Burstedde, Johann Rudi, Omar Ghattas, Georg Stadler, Parallel geometric-algebraic multigrid on unstructured forests of octrees, Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC12), 2012. Acceptance Rate: 22%
- Rahul S Sampath, Hari Sundar, Shravan K Veerapaneni, Parallel fast gauss transform, Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC10), 2010. Best Paper Finalist. Acceptance Rate: 20%
- Ying Zhu, Y. Tsin, Hari Sundar, Frank Sauer, Image-based respiratory motion compensation for fluoroscopic coronary roadmapping, Medical Image Computing and Computer Assisted Intervention (MICCAI), 2010. Acceptance Rate: 32%
- Matthias Schneider, Hari Sundar, Rui Liao, Joachim Hornegger, Chenyang Xu, Model-based respiratory motion compensation for image-guided cardiac interventions, IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2010. Acceptance Rate: 22%
- Matthias Schneider, Hari Sundar, Automatic global vessel segmentation and catheter removal using local geometry information and vector field integration, IEEE International Symposium on Biomedical Imaging: From Nano to Macro (ISBI), 2010. Acceptance Rate: 15%
- Hari Sundar, Christos Davatzikos, George Biros, Biomechanically constrained 4D estimation of myocardial motion, Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2009. Acceptance Rate: 27%
- Hari Sundar, Ali Khamene, Liron Yatziv, Chenyang Xu, Automatic image-based cardiac and respiratory cycle synchronization and gating of image sequences, Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2009. Acceptance Rate: 27%
- Rahul S Sampath, Santi S Adavani, Hari Sundar, Ilya Lashuk, George Biros, Dendro: parallel algorithms for multigrid and AMR methods on 2: 1 balanced octrees, Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC08), 2008. Acceptance Rate: 21%
- Hari Sundar, Rahul S Sampath, Santi S Adavani, Christos Davatzikos, George Biros, Low-constant parallel algorithms for finite element simulations using linear octrees, Proceedings of the ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (SC07), 2007. Best Student Paper Finalist. Acceptance Rate: 20%
- Hari Sundar, Dinggang Shen, George Biros, Chenyang Xu, Christos Davatzikos, Robust computation of mutual information using spatially adaptive meshes, Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2007. Acceptance Rate: 31%
- Hari Sundar, Dinggang Shen, George Biros, Harold Litt, Christos Davatzikos, Estimating myocardial fiber orientations by template warping, IEEE International Symposium on Biomedical Imaging: From Nano to Macro (ISBI), 2006. Acceptance Rate: 35%
- Dinggang Shen, Hari Sundar, Zhong Xue, Yong Fan, Harold Litt, Consistent Estimation of Cardiac Motions by 4D Image Registration, Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2005. Acceptance Rate: 28%
- Hari Sundar, Deborah Silver, Nikhil Gagvani, Sven Dickinson, Skeleton based shape matching and retrieval, IEEE Shape Modeling International, 2003. Over 500 Citations
Theses
Other Publications
- Yang Gao, Hari Sundar, Coronary arteries motion modeling on 2D x-ray images, Proc. SPIE 8316, Medical Imaging 2012.
- Vipin Gupta, Amit Kale, Hari Sundar, A robust and accurate approach to automatic blood vessel detection and segmentation from angiography x-ray images using multistage random forests, Proc. SPIE 8315, Medical Imaging 2012.
- Rui Liao, Yunhao Tan, Hari Sundar, Marcus Pfister, Ali Kamen, An efficient graph-based deformable 2D/3D registration algorithm with applications for abdominal aortic aneurysm interventions, Medical Imaging and Augmented Reality, 2010.
- Luc Duong, Rui Liao, Hari Sundar, Benoit Tailhades, Andreas Meyer, Chenyang Xu, Curve-based 2D-3D registration of coronary vessels for image guided procedure, Proc. SPIE 7261, Medical Imaging 2009.
- Hari Sundar, Ali Khamene, Chenyang Xu, Frank Sauer, Christos Davatzikos, A novel 2D-3D registration algorithm for aligning fluoro images with 3D pre-op CT/MR images, Proc. SPIE 6141, Medical Imaging 2006.
- Deborah Silver, Hari Sundar, Nikhil Gagvani, Shape Based Culling for Volume Graphics, Proc. 13th Eurographics Workshop on Rendering, 2002.
Invited Talks
- Scalable Space-time adaptivity for Simulations of Binary Black Hole Intermediate-Mass-Ratio-Inspirals, Jun 5, 2019. Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA.
- A Scalable Framework for Adaptive Computational General Relativity on Heterogeneous Clusters, Apr 25, 2019. Oden Institute, University of Texas at Austin, Austin, TX.
- Scalability & Adaptivity: Achieving Conflicting Goals in a Heterogeneous Computing Era, Apr 09, 2019. Mechanical Engineering, Iowa State University, Ames, IA.
- dendro-GR: Enabling Adaptivity & Parallelism for Computational Relativity, Computational Challenges in Gravitational Wave Astronomy, Feb 1, 2019. IPAM, UCLA, Los Angeles, CA
- Parallel Fast Gauss Transform, SIAM PP'18, Mar 7, 2018, Waseda University, Tokyo, Japan.
- Efficient Parallel Streaming Algorithms for large-scale Inverse Problems - September 13, 2017 - IEEE High Performance Extreme Computing Conference, Waltham, MA
- Parallel Algorithms for the Computation of Cycles in Relative Neighborhood Graphs - August 16, 2017 - 46th International Conference on Parallel Processing, Bristol, UK
- Challenges in Parallelizing Adaptive High-order Geometric Multigrid, 17th Copper Mountain Conference on Multigrid Methods, Copper Mountain, CO Mar 2015.
- Parallel $hp$-Multigrid for HDG, SIAM Conference on Computational Science and Engineering, Salt Lake City, UT Feb 2015.
- A Nested Partioning Scheme for Adaptive Meshes on Parallel Heterogeneous Clusters, SIAM Conference on Parallel Processing for Scientific Computing, Portland, OR Feb 2014.
- Geometric Multigrid for high-order discretizations, 16th Copper Mountain Conference on Multigrid Methods, Copper Mountain, CO Mar 2013.
- Parallelization Strategies for High-order Discretized Hyperbolic PDEs, SIAM Conference on Computational Science and Engineering, Boston, MA Feb 2013.
- Applications of projective registration for peripheral CTO, Interventional Radiology, University of Virginia Medical Center, Charlottesville, VA 2010.
- Image-based guidance for the crossing of Chronic Total Occlusions, Thoraxcentrum, Erasmus Medical Center, Rotterdam, Netherlands Aug 2009.
- A biomechanical model of the human heart incorporating myocardial fiber orientations, NSF ERC, Computer-Integrated Surgical Systems and Technology, Johns Hopkins University, Baltimore, MD Oct 2008.
Patents
Full list, including pending applications can be found here.
- Medical imaging system, US 8422754 B2, Issued Apr 16, 2013.
- Medical imaging system for segementing blood vessel, US 8488852 B2, Issued Jul 16, 2013.
- Method and system of affine registration of inter-operative two dimensional images and pre-operative three dimensional images, US 7450743 B2, Issued Nov 11, 2008
- Hierarchical atlas-based segmentation, US 8861891 B2, Issued Oct 14, 2014.
- Global error minimization in image mosaicking using graph laplacians and its applications in microscopy, US 8983230 B2, Issued Mar 17, 2015.
- System and method for robust 2D-3D image registration, US 8457373 B2, Issued Jun 4, 2013.
- Deformable 2D-3D registration of structure, US 8494243 B2, Issued Jul 23, 2013.
- Coronary artery motion modeling, US 8849005 B2, Issued Sep 30, 2014.
- Network cycle features in relative neighborhood graphs, US 9047660 B2, Issued Jun 2, 2015.
- System and method for image-based respiratory motion compensation for fluoroscopic coronary roadmapping, US 8798347 B2, Issued Aug 5, 2014.
- Non-rigid 2D/3D registration of coronary artery models with live fluoroscopy images, US 8948487 B2, Issued Feb 3, 2015.